InjectLiveReloadListener::getSubscribedEvents()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 6
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 6
ccs 2
cts 2
cp 1
rs 9.4285
cc 1
eloc 3
nc 1
nop 0
crap 1
1
<?php
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namespace Rj\FrontendBundle\EventListener;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
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use Symfony\Component\HttpKernel\HttpKernelInterface;
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use Symfony\Component\HttpKernel\KernelEvents;
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class InjectLiveReloadListener implements EventSubscriberInterface
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{
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    /**
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     * @var string
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     */
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    private $url;
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    /**
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     * @param string $url
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     */
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    public function __construct($url)
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    {
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        $this->url = $url;
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function onKernelResponse(FilterResponseEvent $event)
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    {
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        if (!$this->shouldInject($event)) {
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            return;
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        }
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        $response = $event->getResponse();
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        $content = $response->getContent();
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        $pos = strripos($content, '</body>');
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        if (false === $pos) {
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            return;
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        }
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        $script = '<script src="'.$this->url.'"></script>';
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        $response->setContent(substr($content, 0, $pos).$script.substr($content, $pos));
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public static function getSubscribedEvents()
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    {
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        return [
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            KernelEvents::RESPONSE => ['onKernelResponse', -128],
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        ];
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    }
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    /**
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     * @param $event
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     *
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     * @return bool
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     */
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    private function shouldInject(FilterResponseEvent $event)
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    {
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        if ($event->getRequestType() !== HttpKernelInterface::MASTER_REQUEST) {
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            return false;
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        }
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        if ($event->getRequest()->isXmlHttpRequest()) {
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            return false;
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        }
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        return $event->getResponse()->headers->has('X-Debug-Token');
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    }
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}
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